package com.boxuegu.utils;

import android.annotation.SuppressLint;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;

import com.boxuegu.bean.UserBean;
import com.boxuegu.bean.VideoBean;
import com.boxuegu.sqlite.SQLiteHelper;

import java.util.ArrayList;
import java.util.List;

public class DBUtils {
    private static DBUtils instance = null;
    private static SQLiteHelper helper;
    private static SQLiteDatabase db;

    public DBUtils(Context context){
        helper = new SQLiteHelper(context);
        db = helper.getWritableDatabase();
    }
    public static DBUtils getInstance(Context context) {
        if (instance == null){
            instance = new DBUtils(context);
        }
        return instance;
    }
    /*
    *  保存用户信息
    * */
    public void saveUserInfo(UserBean bean) {
        ContentValues cv = new ContentValues();
        cv.put("userName",bean.getUserName());
        cv.put("nickName",bean.getNickName());
        cv.put("sex",bean.getSex());
        cv.put("signature",bean.getSignature());
        db.insert(SQLiteHelper.U_USERINFO,null,cv);
    }

    /*
    *  获取用户信息
    * */
//    @SuppressLint("Range")
    public UserBean getUserInfo(String userName) {
        String sql="SELECT * FROM " +SQLiteHelper.U_USERINFO+" WHERE userName=?";
        Cursor cursor = db.rawQuery(sql,new String[]{userName});
        UserBean bean = null;
        while (cursor.moveToNext()){
            bean = new UserBean();
            bean.setUserName(cursor.getString(cursor.getColumnIndex("userName")));
            bean.setNickName(cursor.getString(cursor.getColumnIndex("nickName")));
            bean.setSex(cursor.getString(cursor.getColumnIndex("sex")));
            bean.setSignature(cursor.getString(cursor.getColumnIndex("signature")));
        }
        cursor.close();
        return bean;
    }

    /*
    * 判断数据库中是否存在视频播放记录数据
    * */
    public boolean hasVideoPlay(int chapterId,int videoId,String userName) {
        boolean hasVideo = false;
        String sql = "SELECT * FROM " + SQLiteHelper.U_VIDEO_PLAY_LIST
                +" WHERE chapterId=? AND videoId=? AND userName=?";
        Cursor cursor = db.rawQuery(sql,new String[]{chapterId + "",videoId + "",userName});
        if (cursor.moveToFirst()){
            hasVideo = true;
        }
        cursor.close();
        return hasVideo;
    }

    /*
     * 删除数据库中的视频播放记录数据
     * */
    public boolean delVideoPlay(int chapterId,int videoId,String userName) {
        boolean delSuccess = false;
        int row = db.delete(SQLiteHelper.U_VIDEO_PLAY_LIST,
                " chapterId=? AND videoId=? AND userName=?",new String[]{
                        chapterId+ "",videoId+ "",userName});
        if (row > 0){
            delSuccess = true;
        }
        return delSuccess;
    }

    /*
     * 保存视频播放记录信息到数据库中
     * */
    public void saveVidoPlayList(int id, String chapterName, VideoBean bean,String userName){
        // 判断如果里面有此播放记录则需删除重新存放
        if (hasVideoPlay(id,bean.getVideoId(),userName)){
            // 删除之前存入的播放记录
            boolean isDelete = delVideoPlay(id,bean.getVideoId(),userName);
            // 没有删除成功时，则需要调用return关键字跳出此方法不再执行下面的语句
            if (!isDelete) return;
        }
        ContentValues cv = new ContentValues();
        cv.put("userName",userName);
        cv.put("chapterId",id);
        cv.put("videoId",bean.getVideoId());
        cv.put("videoPath",bean.getVideoPath());
        cv.put("chapterName",chapterName);
        cv.put("videoName",bean.getVideoName());
        cv.put("videoIcon",bean.getVideoIcon());
        db.insert(SQLiteHelper.U_VIDEO_PLAY_LIST,null,cv);
    }

    /*
    * 从数据库中获取视频播放记录的数据
    * */
    public List<VideoBean> getVideoHistory(String userName) {
        String sql="SELECT * FROM " +SQLiteHelper.U_VIDEO_PLAY_LIST+" WHERE userName=?";
        Cursor cursor = db.rawQuery(sql,new String[]{userName});
        List<VideoBean> vbl = new ArrayList<>();
        VideoBean bean = null;
        while (cursor.moveToNext()){
            bean = new VideoBean();
            bean.setVideoId(cursor.getInt(cursor.getColumnIndex("videoId")));
            bean.setVideoPath(cursor.getString(cursor.getColumnIndex("videoPath")));
            bean.setChapterName(cursor.getString(cursor.getColumnIndex("chapterName")));
            bean.setVideoName(cursor.getString(cursor.getColumnIndex("videoName")));
            bean.setVideoIcon(cursor.getString(cursor.getColumnIndex("videoIcon")));
            vbl.add(bean);
        }
        cursor.close();
        return vbl;

    }

    /*
    * 修改用户信息
    * */
    public void updateUserInfo(String key,String value,String userName){
        ContentValues cv = new ContentValues();
        cv.put(key, value);
        db.update(SQLiteHelper.U_USERINFO,cv,"userName=?",new String[]{userName});
    }
}
